Takahiro Sayama, Koji Matsumoto, Yuji Kuwano, Kaoru Takara: Application of Backpack-Mounted Mobile Mapping System and Rainfall–Runoff–Inundation Model for Flash Flood Analysis, Water, Vol. 11, No. 5, 963, 2019.5, https://doi.org/10.3390/w11050963.
Takahiro Sayama, Yuya Tatebe, Yoichi Iwami and Shigenobu Tanaka, Hydrologic sensitivity of flood runoff and inundation: 2011 Thailand floods in the Chao Phraya River basin, Nat. Hazards Earth Syst. Sci., 15, pp. 1617-1630, doi:10.5194/nhess-15-1617-2015, 2015.
Takahiro Sayama, Go Ozawa, Takahiro Kawakami, Seishi Nabesaka, Kazuhiko Fukami, Rainfall-Runoff-Inundation Analysis of Pakistan Flood 2010 at the Kabul River Basin, Hydrological Sciences Journal, 57(2), DOI: 10.1111/jfr3.12147, pp. 298-312, 2012.2.
Takahiro Sayama, Jeff McDonnell, Amod Dhakal, Kate Sullivan, How much water can a watershed store?, Hydrological Processes, 25, pp. 3899-3908, DOI: 10.1002/hyp.8288, 2011.12.
Takahiro Sayama, Yasuto Tachikawa, Hiroki Kanno, and Kaoru Takara, Development of reservoir control optimization simulator by integrating a distributed-rainfall-runoff-model and dynamic programming, Journal of Hydroscience and Hydraulic Engineering, Vol. 29, No.1, pp. 33-45, 2011.5.
Sayama, T., and J. J. McDonnell, A new time-space accounting scheme to predict stream water residence time and hydrograph source components at the watershed scale, Water Resour. Res., 45, W07401, doi:10.1029/2008WR007549, 2009.7.
Maochuan Hu, Takahiro Sayama, Sophal Try, Shigenobu Tanaka, Kaoru Takara, Kenji Tanaka: Trend Analysis of Hydroclimatic Variables in the Kamo River Basin, Japan. Water, Vol. 11, Issue 9, 2019, 1782;https://doi.org/10.3390/w110917821782
Mohamed Rasmy, Takahiro Sayama, Toshio Koike: Development of water and energy Budget-based Rainfall-Runoff-Inundation model (WEB-RRI) and its verification in the Kalu and Mundeni River Basins, Sri Lanka, Journal of Hydrology, Volume 579, 2019, https://doi.org/10.1016/j.jhydrol.2019.124163.
Badri Bhakta Shrestha, Duminda Pradeep Perera, Shun Kudo, Mamoru Miyamoto, Yusuke Yamazaki, Daisuke Kuribayashi, Hisaya Sawano, Takahiro Sayama, Jun Magome, Akira Hasegawa, Tomoki Ushiyama, Yoichi Iwami, Yoshio Tokunaga: Assessing flood disaster impacts in agriculture under climate change in the river basins of Southeast Asia, Natural Hazards, 2019.6, doi.org/10.1007/s11069-019-03632-1
Han Xue, Takahiro Sayama, Kaoru Takara, Bin He, Weili Duan: Non-point source pollution estimation in the Pingqiao River Basin, China, using a spatial hydrograph-separation approach, Hydrological Science Journal, Vol. 64, Issue 8, 2019.5, doi.org/10.1080/02626667.2019.1617867
Ying‐Hsin Wu, Takahiro Sayama, Eiichi Nakakita: Reply to comment by Kong et al. on “Appropriate Boundary Condition for Dupuit‐Boussinesq Theory on the Steady Groundwater Flow in an Unconfined Sloping Aquifer With Uniform Recharge”, Water Resources Research, Early View, 2019, doi:10.1029/2019WR024872.
Yongxue Shi, Takahiro Sayama, Kaoru Takara, Kiyonori Ohtake, Detecting flood inundation information through Twitter: The 2015 Kinu River flood disaster in Japan, Journal of Natural Disaster Science, Vol. 40, No. 1, pp. 1-13, 2019.
Ying-Hsin Wu, Takahiro Sayama and Eiichi Nakakita, Appropriate boundary condition for Dupuit-Boussinesq theory on the steady groundwater flow in an unconfined sloping aquifer with uniform recharge, Water Resources Research, 54, https://doi.org/10.1029/2018WR023070, 2018.8.
Andrea Mariel Juarez-Lucas, Kelly Maren Kibler, Takahiro Sayama and Miho Ohara, Flood risk‐benefit assessment to support management of flood‐prone lands, Journal of Flood Risk Management, doi:10.1111/jfr3.12476, 2018.6.
Eva Mia SISKA, Takahiro SAYAMA, Kaoru TAKARA: SPATIAL AND SEASONAL VARIABILITIES OF WATER USE AND AVAILABILITY IN BALI, 土木学会論文集B1(水工学), Vol. 74, No. 4, I_1333-I_1338, 2018.3.
Duminda Perera, Takahiro Sayama, Jun Magome, Akira Hasegawa, Yoichi Iwami, RCP8.5-Based Future Flood Hazard Analysis for the Lower Mekong River Basin, Hydrology, Vol. 4(4), No. 55, doi:10.3390/hydrology4040055, 2017.
Josko Troselj, Takahiro Sayama, Sergey M. Varlamov, Toshiharu Sasaki, Marie-Fanny Racault, Kaoru Takara, Yasumasa Miyazawa, Ryusuke Kuroki, Toshio Yamagata, Yosuke Yamashiki, Modeling of extreme freshwater outflow from the north-eastern Japanese river basins to western Pacific Ocean, Journal of Hydrology, 555, pp. 956-970, doi:10.1016/j.jhydrol.2017.10.042, 2017.
Maochuan Hu, Takahiro Sayama, Xingqi Zhang, Kenji Tanaka, Kaoru Takara, Evaluating low impact development approach for urban flood mitigation using inundation modelling at the watershed scale, Journal of Environmental Management, 193, pp. 430-438, doi:10.1016/j.jenvman.2017.02.020, 2017.
Maochuan Hu, Takahiro Sayama, Weili Duan, Kaoru Takara, Bin He, Pingping Luo, Assessment of hydrological extremes in the Kamo River Basin, Japan, Hydrological Science Journal, Vol. 62, No. 8, pp. 1255-1265, doi:10.1080/02626667.2017.1319063, 2017.
Han Xue, Takahiro Sayama, Kaoru Takara, Bin He, Weili Duan, Hydrograph-separation-based non-point source pollution modelling in the Pingqiao river basin, China, Journal of Japan Society of Civil Engineers, Ser B1 (Hydraulic Engineering), Vol. 73, No. 4, I_169-I_174, 2017.
Khai Lin Chong, Takahiro Sayama, Kaoru Takara, Ismail Abustan, Effects of diffusive wave and flood inundation on time of concentration, Journal of Japan Society of Civil Engineers, Ser B1 (Hydraulic Engineering), Vol. 73, No. 4, I_151-I_156, 2017.
Karlina, Takahiro Sayama, Kaoru Takara, Low flow forecasting with receccion analysis approaches, Journal of Japan Society of Civil Engineers, Ser B1 (Hydraulic Engineering), Vol. 73, No. 4, I_163-I_168, 2017.
Daisuke Kuribayashi, Miho Ohara, Takahiro Sayama, Atsuhiko Konja and Hisaya Sawano: Utilization of the Flood Simulation Model for Disaster Management of Local Government, Journal of Disaster Research, Vol. 11, No. 6, pp. 1161-1175, doi:10.20965/jdr.2016.p1161, 2016.
Tomoki Ushiyama, Takahiro Sayama and Yoichi Iwami: Ensemble flood forecasting of typhoons Talas and Roke at Hiyoshi dam basin, Journal of Disaster Research, Vol. 11, No. 6, pp. 1032-1039, doi:10.20965/jdr.2016.p1032, 2016.
Andrea Mariel Juarez-Lucas, Kelly Maren Kibler, Miho Ohara and Takahiro Sayama: Benefits of flood-prone land use and the role of coping capacity, Candaba floodplains, Philippines, Natural Hazards, Vol. 84, No. 23, pp 2243–2264, doi:10.1007/s11069-016-2551-2, 2016.
Maochuan Hu, Takahiro Sayama, Shusuke Takahashi and Kaoru Takara: Impact assessment of human activities and climate change on annual runoff in the Kamo River basin, Journal of Japan Society of Civil Engineers, Ser B1 (Hydraulic Engineering), Vol. 72, No. 4, I_451-I_456, 2016.
Rodrigo Fernandez and Takahiro Sayama: Comparison of future runoff projections using Budyko framework and global hydrologic model: conceptual simplicity vs process complexity, Hydrological Research Letters, Vol. 9, No. 4, pp. 75-83, doi:10.3178/hrl.9.75, 2015.
Rodrigo Fernandez and Takahiro Sayama: Hydrological recurrence as a measure for a large river basin classification and process understanding, Hydrology and Earth System Science, Vol. 19, No. 4, pp. 1919-1942, 2015, doi:10.5194/hess-19-1919-2015.
牛山朋來・佐山敬洋・岩見洋一・三好建正:2011年台風12号・15号を対象としたアンサンブル降雨流出予測実験, 河川技術論文集, 第20巻, pp. 455-460, 2014.6.
Tomoki Ushiyama, Takahiro Sayama, Yuya Tatebe, Susumu Fujioka, Kazuhiko Fukami: Numerical Simulation of 2010 Pakistan Flood in the Kabul River Basin by Using Lagged Ensemble Rainfall Forecasting. J. Hydrometeorology, 15, 193-211, 2014.
牛山朋來・佐山敬洋・藤岡 奨・建部祐哉・深見和彦・三好建正:アンサンブルカルマンフィルターを用いた2011年台風12号・15号の降雨流出予測実験, 河川技術論文集, 第19巻, pp. 319-324, 2013.6.
Anurak Sriariyawat, Kwanchai Pakoksung, Takahiro Sayama, Shigenobu Tanaka, and Sucharit Koontanakulvong, Approach to estimate the flood damage in Sukhothai Province using flood simulation, Journal of Disaster Research, Vol. 8, No. 3, pp. 406-414, 2013.
Tesfaye H. TAREKEGN, and Takahiro SAYAMA: Correction of SRTM DEM Artefacts by Fourier Transform for Flood Inundation Modeling, Journal of Japan Society of Civil Engineers, Ser B1 (Hydraulic Engineering), Vol. 69, No. 4, I_193-I_198, 2013.
Ichiro Fujita, Takahiro Ito, and Takahiro Sayama: Inundation Analysis of 2009 Chikusa River Flood and Comparison of Evacuation Criteria, Journal of Flood Risk Management, DOI: 10.1111/jfr3.12020, 2013.
APIP, Takahiro SAYAMA, Yasuto TACHIKAWA, and Kaoru TAKARA: Spatial Lumping of a Distributed Rainfall-Sediment-Runoff Model and its Effective Lumping, Hydrological Processes, Vol. 26, Issue 6, pp. 855-871, DOI: 10.1002/hyp.8300, 2012.
Giha LEE, Yasuto TACHIKAWA, Takahiro SAYAMA, and Kaoru TAKARA: Catchment Responses to Plausible Parameters and Input Data under Equifinality in Distributed Rainfall-Runoff Modeling, Hydrological Processes, Vol. 26, Issue 6, pp. 893-906, DOI: 10.1002/hyp.8303, 2012.
APIP, Takahiro SAYAMA, Yasuto TACHIKAWA, Kaoru TAKARA, and Yousuke YAMASHIKI, Assessing Sources of Parametric Uncertainty and Uncertainty Propagation in Sediment Runoff Simulations, Journal of Flood Risk Management, Vol. 3, Issue 4, DOI: 10.1111/j.1753-318X.2010.01077.x, 2010.
McDonnell, J. J., K. McGuire, P. Aggarwal, K. Beven, D. Biondi, G. Destoundi, S. Dunn, A. James, J. Kirchner, P. Kraft, S. Lyon, P Malosezewski, B. Newman, L. Pfister, A. Rinaldo, A. Phode, T. Sayama, J. Seibert, K. Solomon, C. Soulsby, M. Stewart, D. Tetzlaff, C. Tobin, P. Troch, M. Weiler, A. Western, A Worman, S. Wrede., How old is the water? Open questions in catchment transit time conceptualization, modelling and analysis. Hydrological Processes, Vol. 24, Issue 12, pp. 1745 – 1754, 2010.
Apip, Takahiro SAYAMA, Yasuto TACHIKAWA, and Kaoru TAKARA: A Distributed-Lumped Model For Flood and Sediment Yield Predictions at the Catchment Scale. Hydrological Science (HS), pp. 279-293, Advances in Geosciences, 2010.
Lee Giha, Yasuto TACHIKAWA, Takahiro SAYAMA, and Kaoru TAKARA, Outline for alternative reinfall-runoff modeling framework under uncertainty, Advances in Geosciences (HS), pp. 39-51, 2010.
Sunmin Kim, Yasuto Tachikawa, Takahiro Sayama and Kaoru Takara: Ensemble flood forecasting with stochastic radar image extrapolation and a distributed hydrologic model, Hydrological Processes, vol. 23, issue 4, pp. 597 – 611, doi: 10.1002/hyp.7188, 2009.
Giha LEE, Yasuto TACHIKAWA・Takahiro SAYAMA, Kaoru TAKARA, Effect of spatial variability of rainfall on catchment responses in mesoscale mountainous area, Journal of Hydraulic Engineering, JSCE, vol. 53, pp. 7 – 12, 2009.2.
Barthold FK, Sayama T, Schneider K, Breuer L, Vache KB, Frede HG, McDonnell JJ., Gauging the ungauged basin: a top-down approach in a large semiarid watershed in China, Advances in Geosciences 18: 2008.
Le Minh NHAT, Yasuto TACHIKAWA, Takahiro SAYAMA and Kaoru TAKARA : Development of regional rainfall intensity-duration-frequency curves based on scaling properties, Journal of Hydraulic Engineering, JSCE, vol. 52, pp. 85 – 90, 2008.2.
Giha LEE, Yasuto TACHIKAWA, Takahiro SAYAMA and Kaoru TAKARA : Internal response of catchment to plausible parameter sets under equifinality, Annual Journal of Hydraulic Engineering, JSCE, vol. 52, pp. 79 – 84, 2008.2.
APIP, Takahiro SAYAMA, Yasuto TACHIKAWA and Kaoru TAKARA : Lumping of a physically-based distributed model for sediment runoff prediction in a catchment scale, Annual Journal of Hydraulic Engineering, JSCE, vol. 52, pp. 43 – 48, 2008.2.
Le Minh NHAT, Yasuto TACHIKAWA, Takahiro SAYAMA, and Kaoru TAKARA: A simple scaling charateristics of rainfall in time and space to derive intensity duration frequency relationships, Annual Journal of Hydraulic Engineering, JSCE, vol. 51, pp. 73-78, 2007.2.
Sunmin KIM, Yasuto TACHIKAWA, Takahiro SAYAMA, and Kaoru TAKARA: Ensemble rainfall-runoff prediction with radar image extrapolation and its error structure, Annual Journal of Hydraulic Engineering, JSCE, vol. 50, pp. 43-48, 2006.2.
小林健一郎・立川康人・佐山敬洋・宝 馨 : 分布型降雨流出モデルによる2004年10月台風23号由良川洪水の解析, 水工学論文集, vol. 50, pp. 313-318, 2006.2.
Yasuto TACHIKAWA, Roshan SHRESTHA and Takahiro SAYAMA: Flood disaster and flood runoff modeling in Japan, Predictions in Ungauged Basins, IAHS PUB Publication, 301, pp. 78-86, 2006.
Takahiro Sayama, Kodai Yamamoto, Ryoko Araki, Apip, Kaoru Takara: Impacts of Climate Changes on Hydrological Cycle in a Humid Tropical River Bsin in Sumatra, Indonesia, Proceedings of the 8th ICWRER 2019, Hohai University, Nanjing, 2019.6.
Takahiro Sayama, Tetsushi Itokazu, Ken’ichiro Kosugi, Kaoru Takara, Estimation of Bedrock Groundwater Contribution from a Mountainous Catchment with a Distributed Rainfall-Runoff Model and Time-Space Accounting Scheme, 7th ICWRER, June 5-9, 2016, Kyoto, Japan, pp. 1-6, 2016.
Takahiro Sayama, Go Ozawa, Kawakami Takahiro, Seishi Nabesaka, Kazuhiko Fukami, Analysis of Pakistan Flood 2010 with a Rainfall-Runoff-Inundation Model, Proc. of IHP Symposium on Extreme Events, Uji, Oct. 24-28, 2011, pp. 47 – 56, 2011.
Takahiro Sayama, Kazuhiko Fukami, Shigenobu Tanaka, Kuniyoshi Takeuchi: Rainfall-Runoff-Inundation Analysis for Flood Risk Asessment at the Regional Scale, Proceedings of the 5th Conference of Asia Pacific Association of Hydrology and Water Resources (APHW), Hanoi Vietnam, 8-9 Nov, pp. 568 – 576, 2010.
Takahiro Sayama, Kazuhiko Fukami, Shigenobu Tanaka, Kuniyoshi Takeuchi: Rainfall-Runoff-Inundation Analysis for Flood Risk Assessment at the Regional Scale, Proceedings of International Symposium on Robust and Resilient Society against Natural Hazards & Environmental Disasters and the Third AUN/SEED-Net Regional Conference on Geo-Disaster Mitigation, Aug. 24 – 26, 11p, 2010.
Takahiro Sayama, Jeff McDonnell, Kaoru Takara: A time-space accounting scheme for a distributed hydrologic model to predict streamwater residence time and hydrograph source components, Proceedings of International Conference on Hydrology and Disaster Management (H&DM2009), Wuhan, China, IHP-VII Technical Documents in Hydrology, No. 3, Nov. 2-6, pp. 17-22, 2009.
Takahiro Sayama, Jeff McDonnell : Relationship between residence time and geographic source of stream flow in small watersheds -Analysis with a distributed rainfall-runoff model and field observation data-, Proceedings of HydroChange2008, Kyoto Garden Palace, Kyoto, Oct. 1-3 (Oct. 3), pp. 223-228, 2008.
佐山敬洋・立川康人・平田智行・寶 馨:バイアス補正を考慮するカルマンフィルタを導入した実時間流出予測, 京都大学防災研究所年報, 第50号, pp. 1-14, B, 2007.
Takahiro SAYAMA, Yasuto TACHIKAWA, Kaoru TAKARA, and Yutaka ICHIKAWA : Development of a real-time distributed flood prediction system in a flow regulated river basin, Proc. of 3rd APHW Conference on Wise Water Resources Management towards Sustainable Growth and Poverty Reduction, Bangkok, 16-18 October, 2006.
Takahiro SAYAMA, Yasuto TACHIKAWA, and Kaoru TAKARA : Real-time distributed rainfall-runoff prediction in a flow regulated river basin, the Yodo River Basin, Japan, Proc. of the 6th Japan-Taiwan Joint Seminar on Natural Hazard Mitigation, Kyoto, 9-11 October, 2006.
佐山敬洋・立川康人・寶 馨 : 流出モデルの基準面積に関する研究, 京都大学防災研究所年報, 第49号, B, pp. 27-43, 2006.
Hajime NAKAGAWA, Yoshifumi SATOFUKA, Yasunori MUTO, Satoru OISHI, Takahiro SAYAMA, and Kaoru TAKARA : On sediment yield and transport in the Lesti River Basin, a tributary of the Brantas River, Indonesia – Experiences from field observations and remotely sensed data -, Proc. of International Symposium on Fluvial and Coastal Disasters, -Coping with Extreme Events and Regional Diversity-, Kyoto, Japan, 1 – 2 December 2005, CD-ROM, 2005.
Takahiro SAYAMA, Kaoru TAKARA, Yasuto TACHIKAWA : Application of a distributed rainfall-sediment-runoff model to the upper Brantas River basin, Indonesia, Proc. of International Symposiumu on Ecohydrology, Kuta, Bali, Indonesia, 21-26 November 2005, IHP-VI, Technical Documents in Hydrology, No. 4, pp. 71 – 76, 2005.
佐山敬洋・菅野浩樹・立川康人・寶 馨 : 広域分布型流出予測システムを用いた淀川流域におけるダム群治水効果の分析, 京都大学防災研究所年報, 第48号, B, pp. 15-24, 2005.
Takahiro SAYAMA, Yasuto TACHIKAWA, and Kaoru TAKARA : Assessment of dam flood control using a distributed rainfall-runoff prediction system, International Conference on Monitoring, Prediction and Mitigation of Water-Related Disasters, MPMD-2005, 12 – 15 Jan. 2005, pp. 59-64, Kyoto, 2004.
Takahiro SAYAMA, Yasuto TACHIKAWA, and Kaoru TAKARA : Dam Effects on Flood Attenuation: Assessment with a Distributed Rainfall-Runoff Prediction System, IHP papers presented at the International Conference on Water Sensitive Urban Design ‘Cities and Catchments’, Adelaide, Australia, 22 – 23 Nov. 2004, IHP-VI Technical Documents in Hydrology No.3, pp. 98-108, 2004.
佐山敬洋・立川康人・寶 馨 : ダム群流況制御を考慮した広域分布型流出予測システムの開発, 京都大学防災研究所年報, 第47号, B, pp. 211-226, 2004.
Takahiro SAYAMA, Kaoru TAKARA, and Yasuto TACHIKAWA : Application of Remotely Sensed Data to Sediment Load Estimation by a Distributed Rainfall-Sediment-Runoff Catchment Model, Proc. of International Symposium on Monitoring, Prediction and Mitigation of Disasters by Satellite Remote Sensing (MPMD-2004), Awaji, Hyogo, Japan, 19 – 21 Jan. 2004, pp. 39-45, 2004.
Kaoru TAKARA, Takahiro SAYAMA, Daichi NAKAYAMA, and Yasuto TACHIKAWA, Development of Rainfall-Sediment-Runoff Model in the Upper Brantas River, Indonesia : 第3回水文過程のリモートセンシングとその応用に関するワークショップ, 千葉けやき会館, 2002年1月10日, pp. 121-130, 2002.
Kaoru TAKARA and Takahiro SAYAMA : A Physically-Based Rainfall Sediment Runoff Model in a Catchment Scale -Application to the Upper Brantas River Basin, Indonesia-, Proc. of Third International Conference on Water Resources and Environmental Research (ICWRER), Dresden, Germany, Jul. 22 – 25, Vol. II, pp 257-261, 2002.
Kaoru TAKARA, Daichi NAKAYAMA, Yasuto TACHIKAWA, Takahiro SAYAMA, Hajime NAKAGAWA, Yoshifumi SATOFUKA, Shinji EGASHIRA, and Masaharu FUJITA : A Rainfall-Sediment-Runoff Model in the Upper Brantas River, East, Java, Indonesia, 京都大学防災研究所年報, 第44号, B-2, pp. 247-257, 2001.
27年9月関東・東北豪雨による鬼怒川流域の洪水災害, 京都大学防災研究所年報, 第59号, A, pp. 74-84, 2017.
Takahiro Sayama, Tetsushi Itokazu, Ken’ichiro Kosugi, Kaoru Takara, Estimation of Bedrock Groundwater Contribution from a Mountainous Catchment with a Distributed Rainfall-Runoff Model and Time-Space Accounting Scheme, 7th ICWRER, June 5-9, 2016, Kyoto, Japan, pp. 1-6, 2016.
Takahiro Sayama, Go Ozawa, Kawakami Takahiro, Seishi Nabesaka, Kazuhiko Fukami, Analysis of Pakistan Flood 2010 with a Rainfall-Runoff-Inundation Model, Proc. of IHP Symposium on Extreme Events, Uji, Oct. 24-28, 2011, pp. 47 – 56, 2011.
Takahiro Sayama, Kazuhiko Fukami, Shigenobu Tanaka, Kuniyoshi Takeuchi: Rainfall-Runoff-Inundation Analysis for Flood Risk Asessment at the Regional Scale, Proceedings of the 5th Conference of Asia Pacific Association of Hydrology and Water Resources (APHW), Hanoi Vietnam, 8-9 Nov, pp. 568 – 576, 2010.
Takahiro Sayama, Kazuhiko Fukami, Shigenobu Tanaka, Kuniyoshi Takeuchi: Rainfall-Runoff-Inundation Analysis for Flood Risk Assessment at the Regional Scale, Proceedings of International Symposium on Robust and Resilient Society against Natural Hazards & Environmental Disasters and the Third AUN/SEED-Net Regional Conference on Geo-Disaster Mitigation, Aug. 24 – 26, 11p, 2010.
Takahiro Sayama, Jeff McDonnell, Kaoru Takara: A time-space accounting scheme for a distributed hydrologic model to predict streamwater residence time and hydrograph source components, Proceedings of International Conference on Hydrology and Disaster Management (H&DM2009), Wuhan, China, IHP-VII Technical Documents in Hydrology, No. 3, Nov. 2-6, pp. 17-22, 2009.
Takahiro Sayama, Jeff McDonnell : Relationship between residence time and geographic source of stream flow in small watersheds -Analysis with a distributed rainfall-runoff model and field observation data-, Proceedings of HydroChange2008, Kyoto Garden Palace, Kyoto, Oct. 1-3 (Oct. 3), pp. 223-228, 2008.
佐山敬洋・立川康人・平田智行・寶 馨:バイアス補正を考慮するカルマンフィルタを導入した実時間流出予測, 京都大学防災研究所年報, 第50号, pp. 1-14, B, 2007.
Takahiro SAYAMA, Yasuto TACHIKAWA, Kaoru TAKARA, and Yutaka ICHIKAWA : Development of a real-time distributed flood prediction system in a flow regulated river basin, Proc. of 3rd APHW Conference on Wise Water Resources Management towards Sustainable Growth and Poverty Reduction, Bangkok, 16-18 October, 2006.
Takahiro SAYAMA, Yasuto TACHIKAWA, and Kaoru TAKARA : Real-time distributed rainfall-runoff prediction in a flow regulated river basin, the Yodo River Basin, Japan, Proc. of the 6th Japan-Taiwan Joint Seminar on Natural Hazard Mitigation, Kyoto, 9-11 October, 2006.
佐山敬洋・立川康人・寶 馨 : 流出モデルの基準面積に関する研究, 京都大学防災研究所年報, 第49号, B, pp. 27-43, 2006.
Hajime NAKAGAWA, Yoshifumi SATOFUKA, Yasunori MUTO, Satoru OISHI, Takahiro SAYAMA, and Kaoru TAKARA : On sediment yield and transport in the Lesti River Basin, a tributary of the Brantas River, Indonesia – Experiences from field observations and remotely sensed data -, Proc. of International Symposium on Fluvial and Coastal Disasters, -Coping with Extreme Events and Regional Diversity-, Kyoto, Japan, 1 – 2 December 2005, CD-ROM, 2005.
Takahiro SAYAMA, Kaoru TAKARA, Yasuto TACHIKAWA : Application of a distributed rainfall-sediment-runoff model to the upper Brantas River basin, Indonesia, Proc. of International Symposiumu on Ecohydrology, Kuta, Bali, Indonesia, 21-26 November 2005, IHP-VI, Technical Documents in Hydrology, No. 4, pp. 71 – 76, 2005.
佐山敬洋・菅野浩樹・立川康人・寶 馨 : 広域分布型流出予測システムを用いた淀川流域におけるダム群治水効果の分析, 京都大学防災研究所年報, 第48号, B, pp. 15-24, 2005.
Takahiro SAYAMA, Yasuto TACHIKAWA, and Kaoru TAKARA : Assessment of dam flood control using a distributed rainfall-runoff prediction system, International Conference on Monitoring, Prediction and Mitigation of Water-Related Disasters, MPMD-2005, 12 – 15 Jan. 2005, pp. 59-64, Kyoto, 2004.
Takahiro SAYAMA, Yasuto TACHIKAWA, and Kaoru TAKARA : Dam Effects on Flood Attenuation: Assessment with a Distributed Rainfall-Runoff Prediction System, IHP papers presented at the International Conference on Water Sensitive Urban Design ‘Cities and Catchments’, Adelaide, Australia, 22 – 23 Nov. 2004, IHP-VI Technical Documents in Hydrology No.3, pp. 98-108, 2004.
佐山敬洋・立川康人・寶 馨 : ダム群流況制御を考慮した広域分布型流出予測システムの開発, 京都大学防災研究所年報, 第47号, B, pp. 211-226, 2004.
Takahiro SAYAMA, Kaoru TAKARA, and Yasuto TACHIKAWA : Application of Remotely Sensed Data to Sediment Load Estimation by a Distributed Rainfall-Sediment-Runoff Catchment Model, Proc. of International Symposium on Monitoring, Prediction and Mitigation of Disasters by Satellite Remote Sensing (MPMD-2004), Awaji, Hyogo, Japan, 19 – 21 Jan. 2004, pp. 39-45, 2004.
Kaoru TAKARA, Takahiro SAYAMA, Daichi NAKAYAMA, and Yasuto TACHIKAWA, Development of Rainfall-Sediment-Runoff Model in the Upper Brantas River, Indonesia : 第3回水文過程のリモートセンシングとその応用に関するワークショップ, 千葉けやき会館, 2002年1月10日, pp. 121-130, 2002.
Kaoru TAKARA and Takahiro SAYAMA : A Physically-Based Rainfall Sediment Runoff Model in a Catchment Scale -Application to the Upper Brantas River Basin, Indonesia-, Proc. of Third International Conference on Water Resources and Environmental Research (ICWRER), Dresden, Germany, Jul. 22 – 25, Vol. II, pp 257-261, 2002.
Kaoru TAKARA, Daichi NAKAYAMA, Yasuto TACHIKAWA, Takahiro SAYAMA, Hajime NAKAGAWA, Yoshifumi SATOFUKA, Shinji EGASHIRA, and Masaharu FUJITA : A Rainfall-Sediment-Runoff Model in the Upper Brantas River, East, Java, Indonesia, 京都大学防災研究所年報, 第44号, B-2, pp. 247-257, 2001.
著書(部分執筆)
河川文化<その三十九>, 世界の大規模洪水を監視・予測する先端技術 -2011年タイ洪水を事例に-, 日本河川協会, pp. 93-127, 2013.
Runoff Prediction in Ungauged Basins (Ch. 2, Process realism: Flow paths and storage), Ed. by Gunter Bloschl, Murugesu Sivapalan, Thorsten Wagener, Alberto Viglione, Hubert Savenije, Cambridge Press, 2013.
全世界の河川事典, 高橋 裕・寶 馨・野々村邦夫・春山成子編, 丸善出版, 2013.
招待講演・特別講義・その他講演
Takahiro Sayama: Realtime Flood Inundation Mapping by Assimilating Local Flood Information to Ensemble Flood Simulations, International Symposium of Hydrological Sciences and High-efficiency Water Resources Utilization under the Changing Environment (ISHW2019), 武漢大学, 中国 , 2019.10.26 (Oral, Invited).
Takahiro Sayama: Lessons Learned in Hydrology and Flood Mapping from the Batanghari River Basin, International Conference on Marine and Coastal Engineering and Sciences (ICMACES2019), August 23-24, Lampung, Indonesia, 2019.8.23 (Oral, Invited).
Takahiro Sayama, Challenges in Flood Predictions – Lessens learnt from recent disasters in Japan -, AGU-JpGU Great Debate, Geoscience and Society, Union Session, AGU Fall Meeting, New Orleans, 2017.12.12 (Oral).
Takahiro Sayama, Yongxue Shi, Kaoru Takara, Integration of Citizen-collected Data to Flood Modeling for Real-time Hazard Mapping, Knowledge Forum on Water Security and Climate Change, UNESCO HQ, Paris, France, 18-20 October, 2017 (Oral 2017.10.18).
Takahiro Sayama, Yusuke Yamazaki and Yoichi Iwami, Rainfall-Runoff-Inundation Prediction at the River Basin Scale – Development of RRI Model and its Application to Climate Change Impact Assessment and Real-time Flood Inundation Predictions, GEOSS Asia-Pacific Symposium, WG1: GEOSS AWCI, Tokyo International Exchange Center, January 11-13, 2017 (Oral, 2017/1/12).
Takahiro Sayama, Large Scale Flood Predictions with Satellite-Based Information, International Symposium of K-Water, Seoul, 2015.6.25. (Oral, Invited)
Takahiro Sayama, Yoichi Iwami, Ken’Ichiro Kosugi, Estimation of bedrock groundwater contribution with a distributed rainfall-runoff model and Time-Space Accounting Scheme (T-SAS), 日本地球惑星科学連2015年大会, 5.24-5.28, 幕張メッセ, 2015.5.24, (Oral, Invited).
Takahiro Sayama, Yusuke Yamazaki, Yuya Tatebe, Akira Hasegawa and Yoichi Iwami, Assessment of climate change impact on large scale flooding – a case study in the Chao Phraya River Basin via new modeling technology, THA2015 International Conference on “Climate Change and Water & Environment Management in Monsoon Asia”, 28-30 January 2015, Bangkok, Thailand, 2015.1.28, (Oral, Invited).
Takahiro Sayama: A New Challenge in Flood Runoff and Inundation Forecasting for Early Warning System, Regional Seminar on Challenges and Responses to Extreme Climatic Events, IWA and TWRA, November 25-26, AIT, Thailand, (Oral, Invited).
Takahiro Sayama: Rainfall-Runoff-Inundation (RRI) Model, Flood Model Showcase, The World Bank, 2014.9.24, (Oral, Invited).
Takahiro Sayama : Application and Advancement of Rainfall-Runoff-Inundation Model, 49th ICHARM R&D Seminar, ICHARM, PWRI, 2014.8.27, (Oral, Invited)
Takahiro Sayama : Rainfall-Runoff-Inundation of Large Scale Flooding: From Prediction to Process Understanding, 43rd ICHARM R&D Seminar, ICHARM, PWRI, 2013.5.27, (Oral, Invited)
Takahiro Sayama : Understanding of Large-Scale Rainfall-Runoff-Inundation Process, The 4th International Seminar on Typhoon and Flood Defense Strategies, 2013 Korea Water Resources Association (KWRA), Honam University, Gwangju, Korea, 2013.5.23, (Oral, Invited)
Takahiro Sayama : Water-related Disaster Risk Management, 筑波大学環境ディプロマティック育成プログラム,Integrated water sciences and management, 筑波大学,2012.9.3. (Oral, Invited)
Takahiro Sayama : Introduction of Rainfall-Runoff-Inundation Predictions Using Satellite Based Information, Workshop on using Space Application and Flood Analysis Systems to reduce water related disaster risks in South-East Asia, ESCAP, Bangkok, Feb. 22, 2012, (Oral, Invited).
Takahiro Sayama : Rainfall-Runoff-Inundation Predictions of Large-Scale Flooding with the Aid of Satellite Based Information – Lessons Learned from Thailand Flood 2011 -, GCOE Seminar, University of Yamanashi, Jan. 27, 2012, (Oral, Invited).
Takahiro Sayama : Water-related Disaster Risk Management, 筑波大学環境ディプロマティック育成プログラム,Integrated water sciences and management, 筑波大学,2011.9.12. (Oral, Invited)
Takahiro Sayama : Flood Hazard Modeling for Integrated Flood Risk Management, Special Lecture at Disaster Prevention Research Institute, Kyoto University, Mar. 3, 4, 2011 (Oral, Invited).
Takahiro Sayama : Flood Risk Management: Practice in Various Countries, Flood Hazard Mapping, Lectures at short course on Climate Change in Integrated Water Management, UNESCO-IHE, Sep. 9, 2010 (Oral, Invited).
Takahiro Sayama : Flood Hazard and Risk Management, 筑波大学環境ディプロマティック育成プログラム,Integrated water sciences and management, 筑波大学,2010.9.6. (Oral, Invited)
Takahiro Sayama, Jeffrey McDonnell : From flat ground to steep mountainous subsurface : Use of stable isotope data for watershed model development and testing, B22-A02, Session of The World Is Not Flat: Isotopic Tools for Understanding Mountainous Terrain, AGU Fall Meeting, San Francisco, USA, December 15-19, 2008, 2008.12.16. (Oral, Invited)
口頭・ポスター発表
Takahiro Sayama: Applications of the Rainfall-Runoff-Inundation Model and Data Assimilation Technique for Real-time Flood Inundation Mapping, H12B, AGU Fall Meeting, 2019.12.9, (Oral).
Takahiro Sayama, Kodai Yamamoto, Ryoko Araki, Apip, Kaoru Takara: Impacts of Climate Changes on Hydrological Cycle in a Humid Tropical River Bsin in Sumatra, Indonesia, The 8th ICWRER 2019, Hohai University, Nanjing, 2019.6.16. (Oral)
Takahiro Sayama, Ryoko Araki, Kodai Yamamoto, Apip, Kaoru Takara: Characteristics of Soil and Hillslope Runoff in Humid Tropical Forest in Sumatra, Indonesia, JASTIP-WP4 Seminar on Hydrometeorological Disasters in Humid Tropics, DPRI, Kyoto University, 2019.3.11. (Oral)
Takahiro Sayama, Kenichiro Kobayashi, Yasuto Tachikawa: Flood Hazard Mapping and Recent Flood Disasters in Japan, Catalogue of Hydrologic Analysis (CHA) Workshop on Hazard Mapping, IHP-RSC, Shanghai, China, 2018.11.3, (Oral).
Takahiro Sayama, Kodai Yamamoto, Apip, Kaoru Takara: Impacts of Landuse and Climate Changes on Hydrology in a Tropical River Basin, Sumatra, Indonesia, The 5th JASTIP Symposium – Disaster Risk Reduction & Environmental Sustainability for Social Resilience -, Sama-Sama Hotel, Kuala Lumpur, 2018.10.16, (Oral).
Takahiro Sayama, Kodai Yamamoto, Apip, Kaoru Takara: Climate and Land Cover Changes on Flooding in a Humid Tropic River Basin in Sumatra, Indonesia, 第37回自然災害学会学術講演会, 仙台市中小企業活性化センター, 2018.10.5, (Oral).
Takahiro Sayama, Yongxue Shi, Kaoru Takara, Data Assimilation of Citizen Collected Information for Real-time Flood Hazard Mapping, AGU Fall Meeting, H53N-06, New Orleans, 2017.12.13, (Oral).
Takahiro Sayama, Kodai Yamamoto, Karlina, Kaoru Takara: Field Studies in Asia and Pacific, Impacts of Land Use and Climate Changes on Water Cycle and Flood Disasters in the Batanghari River Basin in Sumatra, Indonesia, International Symposium on Utilization of Field Sites in Research and Education (FREE2017), Kyoto University, 2017.12.9, (Oral).
Takahiro Sayama, Fundamentals in Rainfall-Runoff-Inundation Modeling, The 27th IHP Training Course, International Hydrological Programme, UNESCO, DPRI, Kyoto University, December 4-15, 2017, (Oral).
Takahiro Sayama, Kodai Yamamoto, Karlina, Apip, Luki Subehi, Kaoru Takara, Rainfall-Runoff-Inundation Simulation for Basin-wide Flood Hazard Mapping at the Batanghari River in Sumatra, Indonesia, UNESCO-JASTIP Joint Symposium on Intra-Regional Water Security and Disaster Management, SEDA Hotel, Quezon Philippines, 15-16 November 2017, (2017.11.16, Oral).
Takahiro Sayama, Kodai Yamamoto, Karlina, Apip, Luki Subehi, Kaoru Takara, Hydrologic Process Understanding and Modeling in the Batanghari River Basin, Sumatra, Indonesia, JASTIP-Net Workshop on Indonesian Proposals for Disaster Prevention (WP4), Salak Tower Hotel, Bogor Indonesia, 2017.11.3, (Oral).
Takahiro Sayama and Kaoru Takara, Integration of Local Information and Flood Modeling for Real-Time Flood Hazard Mapping, 5th International Symposium on Earth-Science Challenges (ISEC5), October 1-5, Uji Campus, Kyoto University, 2017.10.3, (Oral).
Takahiro Sayama, Kaoru Takara, Hydrologic Sciences for Flood Disaster Mitigations: Integration of Local Information and Flood Modeling, Hydrology Delivers Earth System Sciences to Society 4 (HESSS4), May 16-19, IIS University of Tokyo, 2017.5.18, (Oral).
Takahiro Sayama, Tetsushi Itokazu, Kenichirou Kosugi, Kaoru Takara, Testing a “hydrologically active bedrock hypothesis” with a process-based model, Dec. 12-16, AGU Fall Meeting, San Francisco, USA, 2016.12.16, (Oral).
Rodrigo Fernandez and Takahiro Sayama, Clasification of river basins by recurrent temporal patterns of storage and runoff, AGU Fall Meeting, San Francisco, December 17, 2015, (Poster/Oral).
Takahiro Sayama and Kaoru Takara, Values of flood hazard mapping for disaster risk assessment and communication, AGU Fall Meeting, San Francisco, December 14, 2015, (Poster).
Takahiro Sayama, Yusuke Yamazaki, Yoichi Iwami, Rainfall-Runoff-Inundtion Prediction at the River basin scale, Japan-Taiwan…****, December, 8, 2015 (Oral).
Takahiro Sayama, Large scale flood predictions using a Rainfall-Runoff-Inundation Model and satellite based information, World Engineering Conference and Convention, December 1, 2015, (Poster).
Takahiro Sayama, Ken’Ichirou Kosugi and Kaoru Takara, Groundwater and surface water interaction and its representation by a distributed rainfall-runoff model in mountainous catchments, The 23rd IHP Regional Steering Committee Meeting for Southeast Asia and the Pacific, UNESCO-IHP and the International Symposium “Integrated Actions for Global Water and Environmental Sustainability”, Medan, Indonesia, October 21, 2015, (Oral).
Tomoki Ushiyama, Takahiro Sayama, Yuya Tatebe, Susumu Fujioka and Kazuhiko Fukami, Numerical simulation of 2010 Pakistan Flood in the Kabul River Basin by using lagged ensemble rainfall forecasting, 4th International Symposium on Earth-Science Challenges (ISEC), University of Oklahoma, September 23, 2015, (Oral).
Takahiro Sayama, Hydrologic Sensitivity to Climate Change, 4th International Symposium on Earth-Science Challenges (ISEC), University of Oklahoma, September 20, 2015, (Oral).
Takahiro Sayama, Rainfall-Runoff-Inundation (RRI) Modelling for Hydro-hazards Predictions, Strategic Strengthening for South-South Cooperation for Modeling and Managing Hydro-Hazards, 8.31-9.1, Jakarta, Indonesia, 2015.8.31, (Oral).
Takahiro Sayama, Shun Kudo, Yusuke Yamazaki and Yoichi Iwami, Rainfall-Runoff-Inundation Modeling and Sensitivity Analysis of Flooding in Asian Monsoon River Basins, 7th APHW, AOGS, 8.3-8.7, Singapore, 2015.8.4, (Oral).
Takahiro Sayama, Yoichi Iwami and Ken’ichiro Kosugi, Simulation of bedrock groundwater dynamics in a distributed rainfall-runoff model, San Francisco, AGU Fall Meeting, 2014.12.19, (Poster).
Takahiro Sayama and Yoichi Iwami: Incoporation of a low-dimensional groundwater flow model in rainfall-runoff-inundation simulations, AOGS, July 28 – Augst 1, 2014, Sapporo, 2014.7.29, (Oral).
Takahiro Sayama, Yuya Tatebe, Yoichi Iwami and Shigenobu Tanaka: Emergency response-type large-scale flood predictions with satellite based information, 1st International Conference on Infrastructure Failures and Consequences (ICIFC), July 16-20, 2014, Melbourne, Australia, 2014.7.17, (Oral).
Takahiro Sayama and Ken’ichiro Kosugi: A low-dimensional hillslope and catchment runoff model based on a subsurface variable-source area hypothesis with weathered bedrock groundwater, EGU, Vienna, Austria, 2014.5.1, (Poster).
Takahiro Sayama, Flood Forecasting and Hazard Mapping with Indus-IFAS (RRI Part) in the lower Indus River Basin, International Dialogue on “Safe Connected Communities against Floods through RS & GIS Tools”, 12-13 March 2014, Islamabad, Pakistan, 2014.3.13, (Oral)
Takahiro Sayama, Yuya Tatebe, Shigenobu Tanaka: How Sensitive is Large-scale Flood Inundation to Rainfall Variability? -Water Balance Analysis Based on Basin-wide Rainfall-Runoff-Inundation Simulation-, San Francisco, AGU Fall Meeting, 2013.12.13, (Poster)
Takahiro Sayama, Yuya Tatebe, Shigenobu Tanaka: Large-scale Flood Simulation with Rainfall-Runoff-Inundation Model in the Chao Phraya River Basin, Vienna, EGU Conference, 2013.4.12, (Poster)
Takahiro Sayama, Yuya Tatebe, Shigenobu Tanaka : Understanding of Large-Scale Flood Processes with a Rainfall-Runoff-Inundation (RRI) Model and Time-Space Accounting Scheme (T-SAS), AUN/SEED-Net, Chulalongkorn University, Thailand, 2013.3.8. (Oral)
Takahiro Sayama, Yuya Tatebe, Shigenobu Tanaka : Rainfall-Runoff-Inundation (RRI) Model and its Application to the Chao Phraya River Basin, Seminar on the JICA’s Support for Chao Phraya River Basin, Bangkok, 2013.2.20. (Oral)
Takahiro Sayama : Flood Hazard Mapping with RRI Model for the Lower Indus River Basin, International Workshop on Flood Risk Mapping using Spatial Technologies 2012, 13-14 Dec 2012, Islamabad, Pakistan, 2012.12.13. (Oral)
Takahiro Sayama, Yuya Tatebe, Shigenobu Tanaka : Understanding of Large-Scale Flood Processes with a Rainfall-Runoff-Inundation (RRI) Model and Time-Space Accounting Scheme (T-SAS), IAHS 90th Anniversary Prediction in Ungauged Basins, 23-25 October 2012, TU-Delft, Netherland, 2012/10/23. (Oral)
Takahiro Sayama, Introduction of Rainfall-Runoff-Inundation Model and application to the Chao Phraya River Basin, ASEAN-Japan Seminar on Satellite Data Applications on Floods, AUN/SEED-Net, Chulalongkorn University, Thailand, 2012/07/31. (Oral)
Takahiro Sayama, Rainfall-Runoff-Inundation Analysis for the lower part of the Indus River Basin, International Workshop on Accuracy and Reliability of Flood Forecasting Models by Use of Remote Sensing Techniques, July 17-18, Avari Hotel, Lahore, Pakistan, 2012.07.18. (Oral)
Takahiro Sayama, Go Ozawa, Kawakami Takahiro, Seishi Nabesaka, Kazuhiko Fukami, Analysis of Pakistan Flood 2010 with a Rainfall-Runoff-Inundation Model, IHP Symposium on Extreme Events, Uji, Oct. 24 – 28, 2011. (Oral)
Takahiro Sayama, Susumu Fujioka, Tomoki Ushiyama, Yuuya Tatebe, Kazuhiko Fukami, Large Scale Rainfall-Runoff-Inundation Analysis in the Indus River Basin, 5th International Conference on Flood Management (ICFM5), Tokyo, September 27-29, 2011. (Oral)
佐山敬洋・Jeffrey J. McDonnell : 山地流域における雨水貯留と流出機構に関する研究,水文・水資源学会,京都大学,pp. 2-3, 2011年8月30日. (Oral)
Takahiro Sayama, Kazuhiko Fukami, Shigenobu Tanaka and Kuniyoshi Takeuchi, Analysis of Hazard and Damage of Pakistan Flood 2010 with Rainfall-Runoff-Inundation Model, IUGG General Assembly (IAHS), Melbourne, Australia, July 4, 2011. (Oral)
Jeffrey J. McDonnell, Amod Dhakal, Kate Sullivan : Storage excess: A new conceptual framework for subsurface water collection, storage and discharge at the watershed scale, AGU Fall Meeting, H11G-890, San Francisco,Dec 13, 2010. (Poster)
Takahiro Sayama, Jeffrey J. McDonnell, Amod Dhakal, Kate Sullivan : Storage excess: A new conceptual framework for subsurface water collection, storage and discharge at the watershed scale, AGU Fall Meeting, H11G-890, San Francisco,Dec 13, 2010. (Poster)
Takahiro Sayama, Kazuhiko Fukami, Shigenobu Tanaka, Kuniyoshi Takeuchi : Development of a Two Dimensional Rainfall-Runoff-Inundation Model for Regional Scale Flood Predictions, 2nd Hydrology delivers Earth System Sciences to Society (HESSS2), 22-25 June 2010, Institute of Industrial Science, The University of Tokyo, Japan, 24 June, 2010. (Oral)
Takahiro Sayama, Jeff McDonnell, Kaoru Takara: A time-space accounting scheme for a distributed hydrologic model to predict streamwater residence time and hydrograph source components, International Conference on Hydrology and Disaster Management (H&DM2009), Wuhan, China, Nov. 2-6, 2009.
Takahiro Sayama, Jeffrey McDonnell : A time-space accounting scheme to capture transit time in watershed models, A workshop on State of the art of catchment-scale residence time: conceptualization, modeling and analysis, Vienna IAEA, Austria, Jan 19-21, 2009, 2009.1.20. (Oral)
Takahiro Sayama, Jeffrey McDonnell : Understanding and predicting of hydrograph sources at the catchment scale, H31E-0931, Session of Catchment Processes and Heterogeneity at Multiple Scales ? Benchmarking Observations, Conceptualisation and Prediction, AGU Fall Meeting, San Francisco, USA, December 15-19, 2008, 2008.12.17. (Poster)
Takahiro Sayama, Jeff McDonnell : Relationship between residence time and geographic source of stream flow in small watersheds -Analysis with a distributed rainfall-runoff model and field observation data-, HydroChange2008, Kyoto Garden Palace, Kyoto, Oct. 1-3 (Oct. 3), 2008. (Oral)
Takahiro Sayama, Jeff McDonnell : The effect of soil depth distribution on the age, origin, and flowpath of water at the catchment scale, 1st International Conference on Hydropedology, PennState University, Pensilvania, July 28-31, 2008. (Poster)
Takahiro Sayama, Jeffrey McDonnell, Yasuto Tachikawa, and Kaoru Takara : Use of residence time and hydrograph component information to test effective parameters in a physically based rainfall-runoff model, H11G-05, Session of watershed characterization and modeling, AGU Fall Meeting, San Francisco, USA, December 10-14, 2007, 2007.12.10. (Oral)
Takahiro Sayama, Yasuto Tachikawa, Kaoru Takara : Real-time distributed flood forecasting incorporating Kalman filter with bias correction, 4th Annual Meeting of Asia Oceania Geosciences Society (AOGS), HS07-PUB, 31 Jul. – 4 Aug., 2007, Bangkok, Thailand, 2007.7.31. (Oral)
Takahiro Sayama, Yasuto Tachikawa, Kaoru Takara : Hydrograph separation method based on spatio-temporal record of stream flow by a distributed rainfall-runoff model, IAHS (HW2004), 10 July, 2007, IUGG-2007 General Assembly, Perugia, Italy, 2007. (Poster)
Takahiro Sayama, Yasuto Tachikawa, and Kaoru Takara : Hydrograph separation based on spatiotemporal record of stream flow in a distributed rainfall-runoff model, International Symposium on “Hydrology delivering Earth System Science to Society”, 28 Feb. – 2 Mar. 2007, Tsukuba Epocal, 2007. (Poster)
Takahiro Sayama, Kaoru Takara, Hajime Nakagawa, and Yasuto Tachikawa : Distributed rainfall-sediment-runoff modelling based on field observations in the Brantas River Basin, Indonesia, Workshop on Flood and Costal Defence: Risk Management under Climate and Social Change, 21-24 February 2007, Newcastle University, UK, 2007. (Oral)
Hajime NAKAGAWA, Yoshifumi SATOFUKA, Yasunori MUTO, Satoru OISHI, Takahiro SAYAMA, and Kaoru TAKARA : On sediment yield and transport in the Lesti River Basin – Experiences from field observations and remotely sensed data -, First international workshop on Integrated water and sediment management in the Brantas River Basin, Indonesia, East Java, Indonesia, 28-29 Jul. 2005.
Takahiro SAYAMA, Yasuto TACHIKAWA, Kaoru TAKARA, and Yutaka ICHIKAWA : Distributed rainfall-runoff analysis in a flow regulated basin having multiple multi-purpose dams, International Conference “VIIth IAHS Scientific Assemble”, Foz do Iguassu, Brazil, 3-9 Apr. 2005.
Takahiro SAYAMA, Yasuto TACHIKAWA, Kaoru TAKARA : Distributed rainfall-runoff analysis in a regulated river basin with multi-purpose dams, International Strategic LSM Workshop for IAHS/PUB, Kyoto, Japan, 20-22 Jan. 2005.
Takahiro SAYAMA, Kaoru TAKARA, and Yasuto TACHIKAWA : Cultivation and Land Slide Monitoring with TERRA/MODIS VIs for Integrated Sediment Management in the Brantas River Basin, Indonesia, International Conference on River / Catchment Dynamics : Natural Processes and Human Impacts, Solsona Catalonia, Spain, 15-20 Sep. 2004.
Takahiro SAYAMA, Kaoru TAKARA, and Yasuto TACHIKAWA : Reliability Evaluation of a Rainfall-Sediment-Runoff Model : Effect of Observed Data on Parameter Uncertainty and Simulation Uncertainty, International Conference of GIS and Remote Sensing in Hydrology, Water Resources and Environment, Yichang, China, 16-19 Sep. 2003.
Takahiro SAYAMA, Kaoru TAKARA, Yasuto TACHIKAWA : On Reliability of a Rainfall-Sediment-Runoff Model, 平成15年度土木学会関西支部年次学術講演会, II-15, 2003.
Takahiro SAYAMA, Kaoru TAKARA : A Physically Based Rainfall-Sediment Runoff Model in a Catchment Scale -Application to the Upper Brantas River Basin, Indonesia-, Second Annual IIASA-DPRI Meeting Integrated Disaster Risk Management: Megacity Vulnerability and Resilience, Laxenburg, Austria , 29?31 Jul. 2002.
Takahiro SAYAMA, Kaoru TAKARA : A Sheet Erosion Process Model for Sediment Runoff Prediction in the Upper Brantas River Basin, Indonesia, AGU Fall Meeting, San Francisco, 10-14 Dec. 2001.